I'm not sure a reset will put it alive, but at least, it won't hurt.
You can also check voltage on the AME8805 converter that powers the stm103 chip.
I'll upload a pic with the test points and what you should read.
No need to power the blade except with the USB plug.
Thanks for the suggestion! Pics of that part and the test info would be really helpful.
Unfortunately pressing the button didn't kickstart the blade into action, so I'm guessing it's a component issue.
